﻿using System;
using System.IO.IsolatedStorage;
using System.Reflection;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Resources;
using Another;
using GalaSoft.MvvmLight.Threading;
using IsoCache.ViewModel;
using CacheLoader;

namespace IsoCache
{
    public partial class App : Application
    {
        private Loader _loader;

        public App()
        {
            Startup += Application_Startup;
            Exit += Application_Exit;
            UnhandledException += Application_UnhandledException;
            InitializeComponent();
        }

        private void Application_Startup(object sender, StartupEventArgs e)
        {
            DispatcherHelper.Initialize();

            // This code start the process of load dll's from server ot cache. 

            RootVisual = new Grid();
            _loader = new Loader(LoadView);
            var info = Application.GetResourceStream(new Uri("CachDemo.xaml", UriKind.Relative));

            _loader.LoadXamlManifestFromStream(info.Stream);
        }



        /// <summary>
        /// Loads the view.
        /// Passed as delegate to the Loader.
        /// </summary>
        /// <param name="x">The x.</param>
        private void LoadView(object x)
        {
            DispatcherHelper.UIDispatcher.BeginInvoke(() =>
                                                          {
                                                              (RootVisual as Grid).Children.Clear();
                                                              (RootVisual as Grid).Children.Add(new MainPage());
                                                              ViewModelLocator.MainStatic.Loader = _loader;
                                                          }
                );
        }

        private void Application_Exit(object sender, EventArgs e)
        {
            ViewModelLocator.Cleanup();
        }

        private void Application_UnhandledException(object sender, ApplicationUnhandledExceptionEventArgs e)
        {
            string errorMsg = e.ExceptionObject.Message + e.ExceptionObject.StackTrace;
            errorMsg = errorMsg.Replace('"', '\'').Replace("\r\n", @"\n");
#if DEBUG
            MessageBox.Show(errorMsg);
#endif

            // If the app is running outside of the debugger then report the exception using
            // the browser's exception mechanism. On IE this will display it a yellow alert 
            // icon in the status bar and Firefox will display a script error.
            if (!System.Diagnostics.Debugger.IsAttached)
            {

                // NOTE: This will allow the application to continue running after an exception has been thrown
                // but not handled. 
                // For production applications this error handling should be replaced with something that will 
                // report the error to the website and stop the application.
                e.Handled = true;
                Deployment.Current.Dispatcher.BeginInvoke(delegate { ReportErrorToDOM(e); });
            }
        }
        private void ReportErrorToDOM(ApplicationUnhandledExceptionEventArgs e)
        {
            try
            {
                string errorMsg = e.ExceptionObject.Message + e.ExceptionObject.StackTrace;
                errorMsg = errorMsg.Replace('"', '\'').Replace("\r\n", @"\n");

                System.Windows.Browser.HtmlPage.Window.Eval("throw new Error(\"Unhandled Error in Silverlight 2 Application " + errorMsg + "\");");
            }
            catch (Exception)
            {
            }
        }
    }
}
